Somehow, the noise reminds him of a cat chattering at potential prey through a windowpane. Charmed, Balthazar chuckles softly. "I could make you a set of a few different colors, if you want. Chalk isn't hard to come by."

Noting the copying, he picks up a piece of yellow chalk and scribbles a smiley-face on the brick, to see if Toothless will do the same.